R005737 seems to be a Meritor part number. If so, it crosses to Euclid E-5737 found in catalogue at
http://www.macpek.com/wp-content/upl...-de-freins.pdf on page 2-49. Please confirm the dimensions are correct for your use. An earlier thread
http://www.mapleleafup.net/forums/sh...ghlight=euclid suggested caution is also needed to be sure you supplier gives you the split style.
Searching on tapered dowel or drive flange wedge may help.
Your local truck (think 5 ton and up) parts supplier may be helpful, mine was.